Plant Parasites of Europe

leafminers, galls and fungi

Phytomyza rydeni

Phytomyza rydeni Hering, 1934

Phytomyza rydeni mine

Ranunculus acris, Braakman


A brown primary blotch that may occupy an entire leaf segment. Frass dispersed. Primary and secondary feeding lines well visible. Pupation within the mine.


Ranunculaceae, monophagous

Ranunculus acris.


Larvae in July-August (Hering, 1957a); I myself found larvae in mid October.


BE not recorded (Fauna Europaea, 2008).

NE found in 2004 in a damp deciduous forest in de Braakman, Zeeuws-Vlaanderen (province of Zeeland).

LUX not recorded (Fauna Europaea, 2008).

distribution within Europe

From Scandinavia to Germany, and from Britain to Poland and the Baltic States (Fauna Europaea, 2008).



Napomyza rydeni; Phytomyza aconitophila var. bohemanni Rydén, 1951; Ph. bohemanni Rydén.


von Tschirnhaus (1999a) considers Ph. salviae (Hering, 1924) synonymous with rydeni, in which case salviae would be the valid name. This does seem untenable: the hostplants (Salvia and Ballota, respectively) are widely separated from the one of rydeni and the mines are completely different. von Tschirnhaus’ opinion is not shared by the Fauna Europaea (2008) either.


Andersen (2013a), Andersen & Jonassen (1994a), Hering (1934a, 1957a), de Meijere (1937a), Pakalniškis (1994a, 2004a), Sønderup (1949a), Spencer (1971a, 1972a, 1976a), von Tschirnhaus (1999a).

Last modified 10.iii.2018